Lateral transport of carbon by wind and water in the form of litter fall could represent a significant portion of carbon entering or exiting an ecosystem. In La Paz, Baja California Sur, Mexico, GCRG established a permanent Eddy Covariance tower in 2001. Eddy Covariance tracks daily, seasonal and yearly ecosystem carbon flux, but may . . . → Read More: Vertical and Lateral Carbon Flux in a Larrea/Cardon Ecosystem near La Paz, BCS, Mexico

The objective of this study is to identify and describe the patterns of and controls on air-sea CO2 exchange at distinct geographic locations (eg, Barrow AK, Bodega Bay CA, San Diego CA) and understand important characteristics of physical and biological processes of the coastal sea.

Carbon flux in arid and semiarid area shrublands, especially in old-growth shrub ecosystems, has been rarely studied using eddy covariance techniques. We are taking long-term eddy covariance measurements at 3 distinct stands of chaparral at Sky Oaks Field Station. We have found that over a 100-year old-growth chamise-dominated chaparral shrub ecosystem can be a . . . → Read More: Long-term Carbon Flux Measurements of Three Chaparral Stands at Sky Oaks Field Station

The 2001 summer season (June-September) in the Atqasuk area was colder and drier than in 2000. Average air temperature between June-September was 4.2°C. Average monthly temperatures were 4.3°C, 7.6°C, 4.3°C, and 0.7°C for June, July, August, and September respectively. Soil surface . . . → Read More: Alaska 2001 Field Report

This summer field season was very intensive for our group and included research sites in Prudhoe Bay, Barrow, Atqasuk, and Seward Peninsula, Alaska, as well as a new site on the Chukotka Peninsula, Russia. Site . . . → Read More: Alaska 2000 Field Report